Small-diameter metal and plastic tubing is used in a wide variety of industrial and medical applications. Some of these tubes can be smaller than 0.125 inches (3 mm) in diameter, with very thin walls. When their applications are safety-critical, they need to meet tight manufacturing tolerances for wall thickness and concentricity. In the past, manufacturers would have to cut the samples to visually inspect the tube or measure the wall thickness using calipers. Today, there’s a fast and nondestructive altern
Source: NDT